Paper manufacture



Sept. 17, 194-0. KEMP v 2,215,328

PAPER MANUFACTURE Filed March 2, 1938 I INVENTOR.

ATTORNEY.

Patented Sept. 17, 1940 UNITED STATES PATENT OFFICE 5 Claims.

This invention relates to improvements in paper manufacture and is directed more particularly to improvements in methods of an apparatus for creating new and novel effects in paper.

The principal objects of the invention are the provision of novel methods of, and an apparatus for, producing distinctive effects in paper during the manufacture thereof. The invention is particularly characterized by novel methods of and an apparatus for removing from a paper web as it is formed a certain portion of the paper making material or fiber and returning the same in association with other material tothe paper forming surface. In this Way it is possible to pro vide a portion of the web which is different in nature than the main body of the sheet, thereby to create various novel effects. By reference to a difierence in nature I mean that the material may be different in color and/or texture from the main body of the sheet or it may be different in other respects, all within the scope of the invention.

Various other novel features and advantages of the invention Will be hereinafter more fully referred to in connection with the accompanying description of the preferred form of the invention, reference being had to the drawing, wherein:

Fig. 1 is a more or less diagrammatic partial elevational and sectional view of one form of an apparatus adapted to carry out the novel method of the invention;

Fig. 2 is a partial plan view on the line 22 of Fig. 1;

Fig. 3 is a sectional view of the line 3-3 of Fig. 2; and

Figs. 4, 5 and6 are enlarged sectional elevational views through a sheet or web of paper to explain the novel features of the invention.

Referring now to the drawing more in detail the invention will befully described.

It will be understood that while the novel features of the invention are hereinafter described in connection with a paper-making apparatus of certain form the same may be employed in connection with paper-making apparatus of various forms. That is to say, hereinafter the making of paper on a Fourdrinier machine is referred to but it is possible to employ the invention in connection with a cylinder machine or any suitable apparatus.

In the drawing, side rails or shake rails of a paper-making machine are indicated at 2 and 4 for supporting a Fourdrinier wire F in the usual manner. Portions of deckles are represented at 8 the lower runs of which rest on the Fourdrinier wire adjacent its marginal sides.

As usual the deckles pass over pulleys such as H) at opposite ends of therails. The Fourdrinier 5 moves in the direction of the arrow and paper making stock is delivered thereonto at its left end portion in any suitable manner.

A transverse tube I2 is supported by brackets such as M at opposite ends thereof. The tube W is connected as by a conduit [6 to a source of suction, represented at l8 and this may be a pump or other suitable device for creating a suction in the conduit.

A transverse bar 20 carries one or more brackets 22 which are slidable and adjustable therealong. Nozzles 24 depend from the brackets 22 and these are suitably connected as by pipes 26 to the hollow member l2. There may be as many of the nozzles as desired.

The brackets 22 are movable to afford an opportunity to adjust the nozzles relative to one another and to the web of paper on the wire F. A supply tank is indicated by 28 and some means such as a conduit 30 is connected to the suction device so that material or fibers removed by the nozzle or nozzles is delivered to the tank 28.

As stated, paper-making material is delivered onto the Fourdrinier wire F which travels in the direction of the arrow and as it passes the nozzle or nozzles 24 the action of the suction device is such that paper stock or fibers are removed from the web of paper forming a longitudinallyextending portion or portions in the web or bar ing the wire along a longitudinal stripe or stripes. The stripe or stripes may be along one or both marginal edges of the web as well as along intermediate portions according to the disposition of the suction nozzles. 40

There may be any number of the nozzles 24 and they may be of various forms so that a stripe or stripes may be produced of any desired width.

In Fig. 4 I have shown that the paper or fibers are stock removed adjacent or at one edge of the. sheet. This is however merely for illustrative purposes since according to the location of the nozzles stock may be removed at various places.

The stock in the tank 28 is to be returned to the wire and for a distinctive effect it may be colored. To that end a container such as 36 may carry a coloring substance, in more or less liquid form which is drawn by suction through conduit 40 into the hollow member l2 and delivered into tank 28. The action is such that the paper stock or fibers removed from the web is mixed with other color than that of the web. If desired water may be added to the paper stock and color by being drawn upwardly by the suction device.

The stock from tank 28 to be delivered to the wire is delivered to a transverse tank or trough 48 disposed transversely of the wire, by means of a conduit 42 or the like. by brackets such as 46 at the ends of the trough 40 which may have rods 46 depending therefrom that are secured to the upper ends of generally U-shaped discharge devices 48. The discharge devices extend downwardly at the rear side of the trough 48 and then forwardly beneath the same. They have discharge outlets such as 50 disposed adjacent the Fourdrinier wire for delivering paper stock thereonto.

The outer ends of the trough 48 may be supported by rods 52 which extend through slots 54 of an angle 56 at the forward side of the trough 48 and manually engageable members 58 on rods 52 are provided to facilitate moving the discharge members 50 transversely of the wire. This is so the members 58 may be set in alignment with nozzles 24.

There may be as many of the discharge members 58 as may be desired and they may be ar-' ranged to deliver a stream or streams of paper stock of any desired width onto the wire. In the drawing the stock delivered by-a member 58 is represented at 62 in Fig. 5.

As previously stated, the stock to replace that removed by the suction nozzle or nozzles is difierent in characteristics from that of the main body of the paper. That is, it may be difierent in texture, kind or quality and as previously described it will be different in the illustrative em-,

bodiment because of the color which has bee-n associated therewith.

In the form of the invention shown, after the colored stock has been delivered to the wire it passes beneath means for producing a deckle. This means may consist of a hollow member-18 supported at opposite ends in supports 12 which carry a rod 14 on which are a plurality of brackets 15 that are adjustably slidable therealong.

Deckle nozzles 16 are provided which are connected by conduits 18 to the member 10 and liquid such as water under pressure is delivered as by a conduit 88 to the hollow member 10. The nozzles may be located as may be desired. In the form of the invention shown one on each side is arranged to remove portions of the stock at or adjacent an edge or edges of the web so as to provide a deckle edge or edges where the stock has been delivered as shown in Fig. 6. The amount of the material flowing from the trough 40 may be controlled in various ways.

There is illustrated a gate 82, provided with an opening 84, that slides up and down in guides 86 over an opening 88 in the trough. A member 90 secured to the gate threadedly engaging a. part 9| of the trough 40 facilitates movement of the gate up and down. There will be a gate and opening in the trough for each of the members 48.

From the foregoing it will be observed that paper stock or fibers are removed from the web on the making element which has associated therewith a color substance and is then returned to replace the fibers removed after which the portion of the web having difierent characteristics either as to color or otherwise may be deckled all A bar 44 is supported to create new and useful effects for structural, ornamental or other purposes.

The invention may be practiced in connection consists in, moving a web of paper being formed on a making element past a suction device to remove fibers along a longitudinal portion of the web, mixing said removed fibers with coloring matter, returning the'mixed fibers and coloring material to the element where the fibers are removed, and finally in deckling'said longitudinal portion of the web by directing a stream of water thereonto, the said coloring material being of a color different from that of the fibers removed.

2. The method of providing paper with a deckle edge difierent in color from that of the main body of the paper which consists in, moving a web of paper-making stock supported by a foraminous member past a suction device and removing by suction from said web substantially all of the stock along a longitudinal portion of said web, delivering said stock to a tank and mixing coloring material with the stock as it is delivered to the said tank, flowing the mixed stock and coloring'material onto said member to replace the stock removed along said longitudinal portion, and directing a stream of water along said longitudinal portion of said web at an angle relative to the plane thereof to remove portions of the mixed stock and coloring material to provide a tapering deckle edge portion on said web.

3. The combination with a paper machine of a means for-forming a deckle edge comprising, a movable foraminous member for supporting a 'web of paper being formed, a suction nozzle disposed above said member for removing from a web'on said member a portion of said web along a longitudinal stripe as said member travels 'therepast, a suction creating device having an and form a beveled portion on said web.

4. The combination with the traveling papermaking' element of a paper machine of means for forming a colored deckle edge. on a web carried by the element comprising, a plurality of nozzles disposed above said element to remove paper-making material from a web thereon along relatively narrow longitudinal portions as said element travels therepast, a tank for paper-making material and coloring material, a container for coloring material, a suction device having an inlet connected to said nozzles and said container and an outlet connected to said tank, means for delivering, paper-making material and coloring material in said tank to said element to replace material removed along said longitudinal portions, and a plurality of disposed nozzles forwardly of said means and above said element for directing jets of water onto said longitudinal porwith paper-making apparatus other than that tions of a web on said element to provide said web with deckle portions.

5. The combination with the traveling papermaking element of a paper machine of means for forming a colored deckle edge on a web carried by said element comprising, a plurality of nozzles disposed above said element to remove papermaking material from a web thereon along relatively narrow longitudinal portions as the element travels therepast, a tank for mixing paper-making material and coloring material, a container for coloring material, a suction device having an inlet connected to said nozzles and container and an outlet connected to said tank, means for delivering materials in said tank to saidele- 'ment to replace that removed along said longitu-. dinal portions, and a plurality of nozzles disposed above said element forwardly of said means for directing jets of water onto said longitudinal portions of a web on the element to provide said web with deckle portions, said delivering means including a trough for paper-making material disposed above and transversely of said element and outlets leading therefrom for delivering streams of material onto said element.

MELVIN L. KEMP. 

